Bleach: Season 1, Episode 196

1 - 196: Joining the Battle! The Strongest Shinigami Army Appears

Kenpachi kills Tesla in one blow and tells Ichigo to stay out of his fight. He informs Ichigo that Urahara was tasked with making the Garganta into Hueco Mundo stable enough for the captains to enter, and that three others came with him. Retsu Unohana arrives with Isane Kotetsu, and persuades the Exequias to leave before healing Gantenbaine and Chad. Mayuri Kurotsuchi arrives and, despite Szayel creating a doll replica of him, remains confident that he can win. Byakuya arrives to save Rukia, and while Zommari nearly kills him with Gemelos Sonido, he manages to save himself with a technique that Yoruichi taught him.